/* Expérience 3D locale. Le H1 et les CTA restent dans le HTML. */
.hero-grid {
  grid-template-columns: minmax(0, 1.35fr) minmax(260px, 0.85fr);
  min-height: 0;
}
.hero-stage {
  position: relative;
  min-height: 520px;
  background:
    radial-gradient(90% 80% at 70% 40%, rgba(200, 16, 46, 0.18), transparent 55%),
    #0b0d10;
  border-right: 1px solid var(--border);
  overflow: hidden;
}
.hero-main { cursor: default; min-height: 0; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 18px; }
.stage-poster, .tech-poster {
  transition: opacity 200ms cubic-bezier(0.23, 1, 0.32, 1);
}
.stage-poster {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #0b0d10;
}
#tech3d { position: absolute; inset: 0; }
.tech-lab.is-live .tech-poster { opacity: 0; }
.tech-steps button {
  min-height: 44px;
  padding: 0 12px;
  border: 1px solid #3a424c;
  background: rgba(11, 13, 16, 0.82);
  color: #f5f6f7;
  font-family: "Titillium Web", sans-serif;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease;
}
.tech-steps button:active { background: #1c2128; }
.tech-steps button:focus-visible,
.hero-actions a:focus-visible {
  outline: 2px solid #ffb4b4;
  outline-offset: 2px;
}
.tech-steps button[aria-pressed="true"] {
  border-color: #ffb4b4;
  color: #ffb4b4;
}
.stage-note {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  margin: 0;
  color: #ffb4b4;
  font-family: "Titillium Web", sans-serif;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.hero-side {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-left: 0;
  border-top: 1px solid var(--border);
}
.hero-card { transition: background-color 180ms ease, transform 180ms ease-out; }
@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  html:not([data-motion="off"]) .hero-card:hover { transform: translateY(-3px); }
}

.tech-lab {
  margin: 28px 0 12px;
  border-top: 1px solid var(--border);
  padding-top: 22px;
}
.tech-lab-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.9fr);
  gap: 22px;
  align-items: start;
}
.tech-lab-copy { max-width: 62ch; }
.tech-lab-copy h2 { margin-bottom: 8px; }
.tech-facts { padding-left: 1.1rem; }
.tech-facts li { margin: 0 0 10px; }
.tech-stage {
  position: relative;
  min-height: 280px;
  background: #0b0d10;
  border: 1px solid var(--border);
}
.tech-poster { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; }
.tech-steps { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0; }

@media (max-width: 900px) {
  .hero-grid, .tech-lab-grid { grid-template-columns: 1fr; }
  .hero-main { grid-column: 1; grid-row: 1; }
  .hero-stage { grid-column: 1; grid-row: 2; min-height: 460px; border-right: 0; border-top: 1px solid var(--border); }
  .hero-side { grid-column: 1; grid-row: 3; grid-template-columns: 1fr; }
}
@media (min-width: 901px) {
  .hero-stage { grid-column: 1; grid-row: 1; }
  .hero-main { grid-column: 2; grid-row: 1; }
  .hero-side { grid-column: 1 / -1; grid-row: 2; }
}
@media (prefers-reduced-motion: reduce) {
  .hero-card, .stage-poster, .tech-poster, .tech-steps button { transition: none; }
}
html[data-motion="off"] .hero-card { transition: none; transform: none; }